I imported a robotic arm 3ds model to play with and it came in with these little nodes. I think they are vertex groups but I don't know how to play with these because I dont know what to call them to search in google for a tutorial.
I tried to delete the nodes so that I could attempt to build an armature system. But, when I did, it deleted parts of the mesh.
Rotating or moving the nodes cause parts of the mesh to move, but not in the way they should. For example, clicking on the node that is associated with the top arm and rotating does not cause the arm to rotate as if it was attached to the lower arm. It just moves independently.
Since they look like origin points, I tried to set the origin to mesh. But the node didn't move.
There are no dope sheets or curves associated with the model.
How can I set this up so that it works properly?
How do I delete these nodes without deleting the mesh, if I wanted to start over? Or how can I convert these to bones?
Where should I start to look? (I have watched tutor4's animation tutuorial at https://www.youtube.com/watch?v=xy8yFclpC9E but all it did was make me want to make my own bones for the model.)